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Finding the Fourth Proportional to 38,993.55, 53,825.67 and 30,362.67

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Solution

The fourth proportional to 38,993.55, 53,825.67 and 30,362.67 is: 41,911.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,993.55 : 53,825.67 = 30,362.67 : x
  2. Step 2: Convert to fraction form
    38,993.55/53,825.67 = 30,362.67/x
  3. Step 3: Cross multiply
    38,993.55x = 53,825.67 × 30,362.67
  4. Step 4: Simplify right side
    38,993.55x = 1,634,291,055.74
  5. Step 5: Solve for x
    x = 1,634,291,055.74/38,993.55
  6. Step 6: Final answer
    x = 41,911.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.